Window-raising device



I. A. KULE-.

WINDOW RAISING DEVICE.

APPLICATION man JULY 2.1920.

Patented Mar. 22, 1921.

@www4/EM as at 34, and guided vertically in a series ot pairs of guidelugs 35, land 37,istruck up from the plate 18, the lower end of the armbeing offset from the plate 18, so as to space the lazy'tongs in suolimanner that when it is raised it will clear certain parts ot' thedevice, hereinafter referred to. A cut-out portion 39 is provided in thechannel track l20, intov which the lower end oi' the bar 34 movesl 'in'the extreme lowered position thereof.

vThe portion 34a of the slide bar is provided withd an interior opening40 at its upper portion substantially rectangular in shape,land with anopen portion 41 extending downwardly therefrom, and provided at each ofits opposed edges with pitched teeth 42 engaged by a worm 43, providedupon a shaft 44 journaled at its ends in bearing brackets 45 and 46struck up from the plate '18. At the upper end of the shaft 44 there isprovided a gear 47 projecting through an opening 48, provided in theplate 18. The plate 18 is provided with a depression 49, in' which theshaft 44 is disposed, and also with a socket portion 50, in which theworm 43 is disposed, so that the bar 34 may lie against the inner sideof the plate 18, and at the same time the' axis of the shaft 44 will be-in line with the central plane of the said bar, and thus insure aproper engagement of the Worm with the pitched teeth 42. Upon astud 51mounted upon the plate 18 above the gear 47 there is rotatably mounted ahandle 52, removably secured to the stud by'means ot a screw 53, andprovided with an enlarged huh portion 54, provided with a recess' at itsinner side, in which there is disposed a plate 56, having a pluralityof' radially disposed cut-outs 57, the solid portions of the platebetween the cut-outs constituting gear teeth engaging the teeth of thegear 47.

By turning the handle, the shaft 44 and the worm 43 carried thereby arerotated, and thus the bar 34 is caused tol be raised or lmvered,expandingr or contracting the lazy tongs, and at the saine. time is oi'such constriuftion as to maintain its position ot adjustment.

The'ehannel piece i7, in which the glass panel rests, is provided witha. depending iurni 58, havingr a. vertical 4slot '59 therein, engaging astud (if), forming the pivotal con nectionof the upper arms 232 and lilof the lazy tongs. At each side ol the pivot (50,

and upon the arms IlQ-ll there are pivotally mounted lever arins 31 and(i2, their short arms intersecting and being provided with elongatedslots eiland (34 engaged by pins. (35 provided at the end ot the arm lnthe lowered positionoi" the glass panels the outer ends of the'arms'lland 62 are en-y` gag-ed by stops (3G and (37,' provided upon the outerwall oi" the. door or window casing, and are movedby such' stops to theposition indicated in full lines in Fig. l., and in which position theglass panel is brought to a final ai'liustment independent of the actiono't` the lazy tongs, causing the saine to be carried lower in the windowcasing than would he possible with the action of the lazy tongs alone.ld'lhen the panel raised to close the window, the arms 6l and .G2 engagethe under side of the sill 16 as the lazy tongs approaches the extent ofits raising movement, and causes a relative raising ot the`glass panelrelatively to the end oi' the lazy tongs, so that a final raisingmovement ot the glass pane -results, which tightly closes the same. Thisconstruction, it will' be seen, enables the use of a glass panel ofsmaller area than is iised in connection with the raising and loweringdevices heretofore in use.

In the sill 1G there are provided cut-out portions 69 and 70 adapted t0receive the channel member 17 and the upper end of the bar 34 inthe-raised position indicated in dotted lines i have illustrated anddescribed a preferred and satisfactory embodiment of my invention, butit is obvious that changes may be made therein within the spirit andscope thereof, as defined in the appended claims.

I claim:

1. In combination with a window frame and a transparent panel slidabletherein, of supportingmeans,fitting the lower edge of said panel,substantially vertically extensible lazy tongs within the window frameheneath said panel and connected at its upper portion to said supportingmeans, a bar dis posed substantially vertically in the window frame andhaving its lower end connected to the lower portion of said lazy tongs,guide means in the window traine for the ripper portion of said bar,said bar being provided` -with worm teeth, a. substantially verticallydisposed shaft in said window frame, a worin thereon meshing with theworm teeth ot said bar, and means on the exterior of, the window casingadapted to rotate said shaft.

2. In eoinliination with a window traine and atransparent panel slidablevertically therein, supporting means engaging the lower edge ot thepanel, a lazy'to'ngs having its upper end pivoied to said supportingmeans and having its lower arms slidable trai'isversely along the baseol' the window trarne, a substantially vertically reciprocating bar insaid window traine having its lower end connected to the lower porH tionoli said lazy tongs and being .slotted at its upper portion and providedwith oppositely disposed series oi worin teeth, guide meansI for theupper portion ol" said har, a suhstai-itially vertieaily disposed shai'tjournaled in the window it'rainel and lying wifhiu the slot in said bar,a worin on said shalt meshing at opposite points with said two series ofworm teeth, a pinion also on said shaft, and a manually rotatable gearWheel on the exterior of said window frame in mesh with said pinion.

3. In combination with a frame `and a movable panel Vtherein adapted tobe raised and lowered, raising and lowering means for the panel,supportmg'means for the panel carried by said raising and loweringmeans, and havinglimited verticalV movement relatively thereto, andmeans carried by :said` raising and lowering means adapted to producerelative raising and lowering movement of said raising' and loweringmeans.

4. In combination with a frame and a movable panel therein. adapted tobe raised and lowered, a lazy tongs adapted to be ex- ,panded andcontracted, su porting means gage said lever arms at the ends of theraisingand lowering movement of said lazy tongs to eaus'e raising andlowering movement of said supporting means relatively to said lazytongs. r Y

In testimony that I claim the foregoing as my inventio, I have si ed mname.

OHN ON IER.

